/Engine/Plugins/Online/OnlineFramework/Source/Party/Public/Chat/SocialGroupChannel.h
void Initialize ( [IOnlineGroupsPtr](API\Plugins\OnlineSubsystem\IOnlineGroupsPtr) InGroupInterface, [USocialUser](API\Plugins\Party\User\USocialUser) & InSocialUser, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & InGroupId )